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ajutatima va rog la chimie

Ajutatima Va Rog La Chimie class=

Răspuns :

....X L .......a g .......160g......
NH3+HNO3=NH4NO3
..22.4L......63g.......80g ......
M HNO3=A H+A N +3×A O=1+14+48=63g
M NH4NO3=2×A N+4×A H +3×A O=28+4+48=80g
a=63×160/80=126g HNO3 necesare .
c/100=md/ms =>ms=100md/c =100×126/40=315g sol HNO3 .
X=22.4×a/63=22.4×126/63=44.8L NH3